[4] Kalamatianos D, Edmunds J M, Wellstead P E, et al. VEClMS 2004-IEEE International Conference on Virtual Environments. Human-Computer Interftaces, and Measurement Systems. Boston. MA, US. July 12-14. 2004. 120.

[5] Macoy Norman H, Broberg Hal, Giroux Jean, et al. Optical Instruments for Weather Forecasting， 1996, 2832: 126.

[6] Murty M V R K. Journal of the Optical Society of America, 1960, 50(1): 7.

[7] Reinhard Beer, Darwin Marjaniemi. Applied Optics, 1966, 5(7): 1191.

[8] Yang Qing-hua. Applied Optics, 2010, 49(21): 4088.